JP3981107B2 - Turnbuckle - Google Patents

Description

  The present invention relates to a turnbuckle, and more particularly to a turnbuckle used when a brace is constructed by pulling a tie rod.

  Conventionally, there is a brace composed of a substantially rod-shaped tie rod and a turnbuckle for pulling the tie rod. When using such a brace, one end of the tie rod is connected to a predetermined part of a structure, and the other end is connected to another part of the structure or a predetermined part of another structure via the turnbuckle. Then, by adjusting the fastening screw of the turnbuckle, the structure having the two structural members is strengthened by appropriately pulling between the two structural members in the structure or between the two structures, or The structure can be stabilized by the other structure. For example, taking container loading as an example, when a container is placed on a platform of a mobile engine, such as a ship deck, it is fixed on the container and the deck by a brace composed of a tie rod and a turnbuckle as described above. It is possible to prevent the article such as the container from moving or overturning while the moving engine such as the ship is moving by pulling it along the side of the container.

  The turnbuckle in this conventional brace mainly comprises a holding frame and a screw rod, and has a function of adjusting the tightening degree of the tie rod by tightening the screw rod. There is a problem that the tightening is loosened by frequent twisting in the opposite direction of the tightening.

On the other hand, the inventor of the following Patent Document 1 is provided with a holding frame, a screw rod having a non-circular protrusion formed at the tip thereof, a movably provided on the holding frame, and the non- A turnbuckle comprising a stop with a through hole engaged with a circular protrusion was proposed. Such a turnbuckle is connected to the tie rod between two structures (for example, the container and the deck), and after adjusting the tightening between the holding frame and the screw rod, By moving the base and engaging the non-circular through hole of the stop base with the non-circular protrusion of the screw rod, the holding frame and the screw rod can be stopped so as not to be relatively twisted. . That is, when the turnbuckle according to this structure is used for pulling between two structures together with the tie rod, the turnbuckle is engaged by engagement between the noncircular through hole of the stopper and the noncircular protrusion of the screw rod. The tightening force on the two structures can be secured so as not to loosen.
US Pat. No. 6,666,634

  However, the turnbuckle is made to solve the problem of the conventional turnbuckle. However, in practice, when the shaking is severe, the stop is detached from the screw rod and the engagement is released. Therefore, it cannot be said that the problem that the conventional tightening is easy to loosen can be surely prevented, and it is considered that further improvement is necessary.

  The present invention has been proposed in view of the above, and an object of the present invention is to provide a turnbuckle that can secure a tightening relationship and avoid loosening of a tightening force.

  In order to achieve the above-mentioned object, the present inventor has intensively studied, and as a result of adding a locking means to the stop, the non-circular through hole of the stop is fitted with the non-circular protrusion of the screw rod. Later, it has been devised that the locking means can be locked from the threaded rod with difficulty by the locking means.

Thus, the invention of claim 1 is a turnbuckle used when a brace is constructed by pulling a tie rod, and is screwed to the holding frame so as to be able to advance and retreat, and has a non-circular shape at the tip. A non-circular through hole that has a non-circular through hole that can be fitted to the non-circular protrusion so as to be insertable and non-rotatable relative to the non-circular protrusion. It comprises a stop that is provided on the holding frame to enable movement of the through hole with respect to the non-circular protrusion, and a series of locking holes are provided in the circumferential direction on the outer peripheral surface of the non-circular protrusion. is formed along, wherein the stopper base, wherein at least a portion from the inner surface of the non-circular hole is retractable, and the locking hole when the non-circular hole to mate with said non-circular projection First locking means that can be elastically locked is provided. And features.

In addition to the above feature of claim 1, the invention of claim 2 is characterized in that the non-circular through hole and the non-circular projection both have a gear shape, and the invention of claim 3 , in addition to the features of claim 1 or 2, wherein the locking hole is formed at the tip of Hayama in gear form prior Symbol noncircular protrusion in the form of notches, also, the first locking means The non-circular through-hole gear is provided in a tooth groove, and the invention of claim 4 is characterized in that, in addition to any of the above-mentioned features of claims 1 to 3, A surface that slides on one side of the holding frame when it moves relative to the holding frame, and at least a portion of the surface that slides on one side of the holding frame can be projected and retracted; A second locking means for elastically stretching the one side surface is provided on the stop base. And, further the invention of claim 5, in addition to the above features of claim 2, wherein the locking hole is formed at the tip of Hayama in gear form prior Symbol noncircular protrusion in the form of notches, also, the The first locking means is provided between two tooth grooves in the gear shape of the non-circular through hole, and the invention of claim 6 is characterized in that in addition to the above feature of claim 5 The first locking means opens into the inner surface of the through-hole so as to pass through the two tooth spaces in the gear shape of the non-circular through-hole in the stop, and further extends to In the straight hole formed so as to open also on one side of the holding frame, the side of one end protrudes and departs from the opening of the inner surface, and the engagement of the non-circular protrusion corresponding to the two tooth grooves. A coil spring that locks the blind hole, and the one end of the holding frame that is elastically biased to the other end of the coil spring. And, in addition to the above feature of claim 6, the coil spring is characterized in that the one end of the coil spring is more than the other end. Further, in addition to the above feature of any one of claims 1 to 7, the invention of claim 8 is characterized in that the holding frame is connected to the tie rod. And a second end connected to another structure via the screw rod, and a pair of elongated shapes connecting the first and second ends to each other and parallel to the axis of the screw rod A screw that is formed in a longer shape with a member, and that has the same axis as the axis of the screw rod itself in parallel with the pair of long members at the second end, and allows the screw rod to be screwed through. A hole is formed, and the stopper is attached between the pair of elongated members. The concave portions that can be slidably fitted along the pair of long members are formed on both sides thereof, and the surfaces of the pair of long members on which the concave portions slide are formed. The one side surface of the holding frame is used.

The turnbuckle according to the present invention is fixed by tightening between two structures together with the tie rod, and then moving the stopper to fit the non-circular through hole of the stopper to the non-circular protrusion of the screw rod. Since the first locking means provided on the base can be locked in the locking hole formed in the non-circular protrusion, the locking base does not detach from the screw rod according to the shaking, and the holding frame, the screw rod, Therefore, it is possible to ensure that the tightening force to the two structures is not loosened.

  Hereinafter, preferred embodiments of the present invention will be described in detail. In the following description, regardless of the size, components having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is performed only when necessary.

[First embodiment]
First, a first embodiment of the turnbuckle according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the turnbuckle of the present invention includes a holding frame 1, a screw rod 2, and a stop 3. The holding frame 1 includes a pair of cylindrical long members 11 and 11 that are parallel to each other, and upper and lower portions of the pair of long members 11 and 11 as first and second ends of the holding frame 1, respectively. The two cross blocks 12 and 13 connecting both ends are integrated. The first end portion 12 can be directly connected to the tie rod 6 as shown in the figure, but is not limited thereto, and may be connected to the tie rod via a collar. The second end portion 13 is connected to another structure via the screw rod 2, and its axis X is parallel to the pair of long members 11, 11, so that the screw rod 2 is connected. A screw hole 131 through which the screw is inserted is formed.

As shown in FIG. 1, the screw rod 2 is provided on the holding frame 1 through the screw hole 131 so as to be capable of screwing along its own axis, that is, the axis X. The threaded rod 2 is substantially rod-shaped with both end portions 21 and 22, and a gear-shaped protrusion 23 is formed on the distal end surface of the one end portion 21 so as to further extend in the axial direction. For example, can be combined with other structures or mobile platforms. The outer peripheral surface of the gear-shaped projections 23 are formed at the tip of Hayama in the form of notches in a series of locking holes 24 are gear-shaped along the circumferential direction.

  As shown in FIGS. 1 and 2, the stopper 3 is attached between the pair of long members 11, 11 of the holding frame 1, and the pair of columnar long shapes on both sides thereof. Concave arc-shaped recesses 31 and 32 for fitting the members 11 and 11 are formed, and can slide along the pair of long members 11 and 11. The stop 3 has a gear-shaped through-hole 33 that can be fitted to the gear-shaped protrusion 23 in correspondence with the gear-shaped protrusion 23, and the axis of the gear-shaped through-hole 33 is the screw thread. It is the same as the axis of the hole 131 and the screw rod 2 itself (axis X). As a result, the stop 3 can be slid along the axis X until it fits into the gear-shaped protrusion 23 of the screw rod 2 as shown in FIG.

Further, the stopper 3 is provided with first locking means 4 that at least partly protrudes and protrudes from the peripheral wall surface (that is, the inner surface) of the gear-shaped through hole 33 and elastically locks the locking hole 24. It has been. In the present embodiment, the first locking means 4 extends outwardly from a tooth groove (see FIG. 5) in the gear-shaped peripheral wall of the gear-shaped through-hole 33 in the stop 3 and communicates with the outside. The through-hole 34 is provided. Said first locking means 4, the a from the side of the gear-type through hole 33 to the outside, a part of previous Symbol of the gear-type through projecting from the hole inlet to bore 33 the gear-shaped projections 23 A ball-shaped stop member 41 (hereinafter referred to as a ball 41) for locking the locking hole 24, a coil spring 42 that pushes the ball 41 and protrudes from the peripheral wall surface of the gear-shaped through hole 33; A stopper member 43 that is plugged by the coil spring 42 so as to close the opening to the outside of the through hole 34 is arranged, and the inner diameter of the hole on the inner side of the through hole 34 is configured. Is set smaller than the outer diameter of the ball 41 so that the ball 41 does not jump out of the hole 34.

  Thus, after the stop 3 is slid until the gear-shaped through hole 33 is fitted to the gear-shaped protrusion 23 of the screw rod 2, the ball 41 is locked by the biasing force of the coil spring 42. By falling into the hole 24 and locking with the locking hole 24, the stopper 3 can be stopped immovably. When the lock 41 is pulled, the ball 41 is squeezed by the tooth crest of the gear projection 23 in the gear shape so that the ball 41 moves backward. be able to.

  Further, when FIG. 1, FIG. 4 and FIG. 5 are taken together, the pair of the elongated members 11 and 11 of the holding frame 1 are further attached to the stopper 3 when sliding on the holding frame 1. A second surface that protrudes and protrudes into an inner surface of the recess 31 that slides on one of the side surfaces (hereinafter referred to as a sliding surface 311 of the recess 31) and elastically stretches the one side surface of the holding frame 1. The locking means 5 is provided. The second locking means 5 is provided in a blind hole 35 that extends from the inside of the stop 3 to the sliding surface 311 of the recess 31 and opens to the sliding surface 311.

The second locking means 5 includes a ball 51 as a stopping means and a coil spring 52 that urges the ball 51 to be stretched against one side of the elongated member 11 from the outside of the hole into the hole. It has been done. In this way, the locking base 3 cannot arbitrarily slide on the holding frame 1, thereby further solidifying the locking between the locking base 3 and the gear-shaped protrusion 23 of the screw rod 2. be able to.
[Second Embodiment]
Next, a second embodiment of the turnbuckle according to the present invention will be described with reference to FIGS. The turnbuckle of the second embodiment is substantially the same as that of the first embodiment, but the difference is in the installation position and structure of the first locking means 4.

  The first locking means 4 in this embodiment is provided between two tooth grooves in the gear shape of the gear-shaped through hole 33. More specifically, the first locking means 4 is provided in a straight hole 36 formed in the stop 3. As shown in FIG. 6, the straight hole 36 opens toward the inner surface of the through-hole 33 while passing through two tooth spaces in the gear-shaped through-hole 33 (hereinafter referred to as an opening 361). ), And further extended so as to open on the sliding surface 311 of the recess 31.

In the first locking means 4, a coil spring 42 and a ball 41 are arranged from the inside of the straight hole 36 to the outside of the hole. The coil spring 42 is provided so that one end 421 thereof is formed to have a smaller diameter than the other end 422, and the side of the one end 421 protrudes from the opening 361 on the inner surface of the through hole 33 into the gear-shaped through hole 33. It has been. Thereby, when the stop 3 is slid until its gear-shaped through hole 33 is fitted to the gear-shaped protrusion 23 of the screw rod 2, first, the one end of the coil spring 42 is shown in FIG. 421 is pressed in the direction opposite to the opening 361 in the straight hole 36 by the compression of the two tooth crests fitted into the two tooth grooves in the gear shape of the gear-shaped through hole 33 of the gear-shaped protrusion 23. It is, and, when located in the retaining holes 2 4 in the two Hayama of the gear-shaped projections 23, locking the locking hole 2 4 rebounds by the elasticity of its own (as in the state shown in FIG. 6 Became).

  Further, in this embodiment, the ball 41 is elastically pressed against the other end 422 of the coil spring 42 and stretches against one side surface of the elongated member 11 of the holding frame 1. Therefore, unlike the first embodiment, it is not necessary to provide the two locking means 4 and 5 by opening the two holes of the through hole 34 and the blind hole 35 in the stop base 3. The stop 3 can be locked to the gear-shaped protrusion 23 with only one locking means (first locking means 4).

  As described above, when the turnbuckle according to the present invention is used for pulling between two structures together with the tie rod, the non-circular through hole of the stopper and the non-circular protrusion of the screw rod. By fitting, it is possible to prevent the screw rod and the holding frame from being twisted relatively, and it is possible to avoid the stopper from being detached from the screw rod by the locking means. The effect of preventing the twisting of the stopper can be sufficiently exerted to secure the tightening relationship between the holding frame and the screw rod.

  The embodiments described above are merely intended to clarify the technical contents of the present invention, and the present invention is not limited to such specific examples and is not construed in a narrow sense. It can be implemented with various modifications within the scope described in the spirit and claims.

1 is an exploded perspective view of a first embodiment of a turnbuckle according to the present invention. Perspective view during assembly of the first embodiment. Assembled perspective view of the first embodiment Partial sectional view of the first embodiment assembled. Partial cross-sectional view of the assembled first embodiment Assembled partial cross-sectional view of a second embodiment of the turnbuckle of the present invention Partial cross-sectional view during locking of the non-circular through hole of the stop base of the second embodiment and the non-circular protrusion of the screw rod

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Holding frame 11 Elongate member 12 1st edge part 13 2nd edge part 131 Screw hole 2 Screw rod 21 One end part 22 Other end part 23 Gear-shaped protrusion 24 Locking hole 3 Stopper 31 Recess 311 Sliding of a recessed part Surface 32 Recess 33 Gear-shaped through-hole 34 Through-hole 35 Blind hole 36 Straight hole 361 Opening 4 First locking means 41 Ball (stopping member)
42 Coil spring 421 One end 422 of the coil spring Other end 43 of the coil spring Plug stopper member 5 Second locking means 51 Coil spring 52 Ball (stop member)
6 Tie rod X axis

Claims (8)

A turnbuckle used when a brace is constructed by pulling a tie rod (6),
Holding frame (1);
A screw rod (2) threadably engaged with the holding frame (1) and having a non-circular protrusion (23) extended at the tip;
There is a non-circular through hole (33) which is on the extension axis of the threaded rod (2) and can be removably inserted into the non-circular protrusion (23) and cannot be relatively rotated. It comprises a stop (3) provided on the holding frame (1) to enable movement for insertion and removal of the hole (33) with respect to the non-circular protrusion (23),
A series of locking holes (24) are formed along the circumferential direction on the outer peripheral surface of the non-circular protrusion (23),
At least a part of the stop base (3) can protrude from the inner surface of the non-circular through hole (33), and the non-circular through hole (33) is fitted to the non-circular protrusion (23). A turnbuckle characterized in that a first locking means (4) capable of elastically locking the locking hole (24 ) is sometimes provided.   The turnbuckle according to claim 1, wherein the non-circular through hole (33) and the non-circular protrusion (23) both have a gear shape. Said locking holes (24) are pre SL formed in the form of notches in the distal end of Hayama in the gear-shaped non-circular projection (23), also, the first locking means (4), said non-circular The turnbuckle according to claim 1 or 2, wherein the turnbuckle is provided in a tooth groove in a gear shape of the through hole (33). The stop (3) has a surface (311) that slides on one side of the holding frame (1) when it moves relative to the holding frame (1).
A second locking means (5) that can be projected and retracted at least partially from a surface (311) that slides on one side of the holding frame (1) and elastically stretches the one side is provided with the stop (3 The turnbuckle according to any one of claims 1 to 3, wherein the turnbuckle is provided. Said locking holes (24) are pre SL formed in the form of notches in the distal end of Hayama in the gear-shaped non-circular projection (23), also, the first locking means (4), said non-circular 3. The turnbuckle according to claim 2, characterized in that it is provided between two tooth spaces in the gear shape of the through-hole (33). The first locking means (4) is formed on the inner surface of the through hole (33) so as to pass through two tooth spaces in the gear shape of the non-circular through hole (33) in the stop base (3). In the straight hole (36) formed so as to open to one side of the holding frame (1) by extending further, the side of one end is the opening (361) of the inner surface. of said non-circular projection and retractable (23) from the elastic wherein a coil spring for locking the two engaging Tomeana corresponding to tooth spaces (24) (42), the other end of the coil spring (42) The turnbuckle according to claim 5, wherein a stop member (41) that is urged by force and is stretched on the one side surface of the holding frame (1) is arranged.   The turnbuckle according to claim 6, wherein the one end (421) of the coil spring (42) has a smaller diameter than the other end (422). The holding frame (1) includes a first end (12) connected to the tie rod (6) and a second end (13) connected to another structure via the screw rod (2). And a pair of elongated members (11) which are parallel to the axis of the screw rod (2) and which connect the first and second end portions (12, 13) to each other. At the same time, the screw rod (2) is screwed into the second end (13) having the same axis as the axis of the screw rod (2) itself in parallel with the pair of elongated members (11). A screw hole (131) to be inserted is formed,
The stop (3) is attached between the pair of long members (11), and can be slidably fitted along both sides of the pair of long members (11). A concave portion (31) that can be formed is formed, and a surface of the pair of long members (11) on which the concave portion (31) slides is defined as the one side surface of the holding frame (1). The turnbuckle according to any one of claims 1 to 7.

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